74LS85 4-Bit Magnitude Comparator IC (7485 IC) DIP-16 Package

74LS85 4-Bit Magnitude Comparator IC (7485 IC) DIP-16 Package

These 4-bit magnitude comparators perform comparison of straight binary or BCD codes. Three fully-decoded decisions about two, 4-bit words (A, B) are made and are externally available at three outputs. These devices are fully expandable to any number of bits without external gates. Words of greater length may be compared by connecting comparators in cascade. The A > B, A < B, and A = B outputs of a stage handling less-significant bits are connected to the corresponding inputs of the next stage handling more-significant bits. The stage handling the least significant bits must have a high-level voltage applied to the A = B input. The cascading path is implemented with only a two-gate-level delay to reduce overall comparison times for long words.

What is a 4-bit Magnitude Comparator?

A 4-bit magnitude comparator compares two binary numbers each of four bits. It consists of eight inputs each for two four bit numbers and three outputs to generate less than, equal to and greater than between two binary numbers.

Features:-

• Typical power dissipation 52mWn
• Typical delay (4-bit words) 24ns

Specifications:-

• Series : 74LS
• Part Number : 74LS85
• Supply Voltage : 7V
• Input Voltage : 7V
• Operating Free Air Temperature Range : 0°C to +70°C
• Storage Temperature Range : −65°C to +150°C
• VCC (Min): 4.75V
• VCC (Max): 5.25
• Bits (#): 4
• Operating Voltage (Nom): 5V
• The frequency at a normal voltage (Max): 35MHz
• Propagation delay (Max): 35ns
• IOL (Max): 16mA
• IOH (Max):-0.4mA

Package Includes:-

1 x 74LS85 4-Bit Magnitude Comparator IC (7485 IC) DIP-16 Package